Phantom item structure with primary structure name is not exploding alt structure of parent item

Summary:

Phantom item structure with primary structure name is not exploding alt structure of parent item.

Content (required):

if primary structure of phantom item structure is available then it does not explode in alternate structure of parent item

Version (include the version you are using, if applicable):

23A

Code Snippet (add any code snippets that support your topic, if applicable):